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| Brand | Samsung |
|---|---|
| Model | SM863 |
| Capacity | 960 GB |
| Usage Class | Write Intensive |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 2-bit MLC |
|---|---|
| Drive Writes Per Day | 3.6 |
| Total Bytes Written | 6160 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 485 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 28000 |
| Average Latency | 95 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7KH1T9HAJR-000H3 |
|---|
The Samsung SM863 MZ7KM960HAHP-000D3 is a write-intensive SATA SSD built for virtualization, OLTP, and cache-tier deployments, pairing Samsung V-NAND 2-bit MLC with 3.6 DWPD and 6160 TBW to deliver substantially stronger endurance and more stable sustained write behavior than the previous-generation MZ7KH1T9HAJR-000H3. Compared with that earlier part, it also brings a more enterprise-focused performance profile, reaching 520/485 MB/s and up to 97,000/28,000 IOPS for higher transaction density and better QoS consistency in mixed-read/write workloads.
With an endurance rating of 6,160 TBW and 3.6 DWPD, the MZ7KM960HAHP-000D3 is built to handle sustained enterprise write workloads far beyond typical system-boot or general server usage. In practical terms, under normal OS, application, and mixed-read environments, this level of endurance means the drive can be deployed for many years with substantial margin, making it a very safe choice for long-term infrastructure use. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate an enterprise-class design focused on extremely low uncorrectable error rates and stable operation in mission-critical environments.
1. The SATA 6.0 Gbps interface, paired with 520 MB/s sequential read performance, enables a drop-in upgrade path for legacy enterprise servers while keeping boot, backup, and large-file retrieval operations consistently responsive.
2. With 97,000 random-read IOPS, this drive can sustain heavy metadata lookups and small-block transaction workloads, making it well suited for virtualization, OLTP, and read-intensive database tiers.
3. A 3.6 DWPD endurance rating translates into dependable write tolerance for years of intensive enterprise use, reducing replacement frequency in logging, analytics, and mixed-workload environments.
4. Samsung V-NAND 2-bit MLC provides a strong balance of performance consistency, endurance, and data integrity, which is especially valuable for mission-critical storage deployments.
5. The 95 µs typical latency helps minimize application wait time, supporting faster response in latency-sensitive workloads such as high-concurrency databases and real-time business services.
Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB At 960 GB, this drive sits in the sweet spot of the series. Compared with the 480 GB model, it offers much better headroom for OS images, application binaries, logs, and moderate data growth, reducing the risk of early capacity pressure. Compared with the 1.92 TB version, it delivers a more attractive cost-per-deployment while keeping enterprise-grade SATA performance essentially unchanged. This makes 960 GB a balanced choice for mid-scale virtualization, such as hosting boot and application volumes for about 35 to 50 general-purpose virtual machines.
Q: Is MZ7KM960HAHP-000D3 suitable for a write-heavy database server?
A: Yes. With 3.6 DWPD, 6160 TBW, Samsung V-NAND 2-bit MLC, and low 95 µs typical latency, this SSD is well suited for write-intensive database and enterprise workload scenarios.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 3.6 full drive writes per day. For a 960 GB model, that equals about 3.46 TB of writes daily across the official warranty period.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and mapping tables during unexpected outages, which is critical for preventing corruption and maintaining database consistency.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in performance-sensitive servers, as it balances speed, redundancy, and rebuild reliability. RAID 1 or RAID 5 may also fit specific capacity needs.